I. verb
Synonyms: surprise 1, lay (for), waylay
Related Word: assail, assault, attack; ensnare, entrap, snare, trap
II. noun
a device to entrap an enemy by lying in hiding until a surprise attack is feasible
planned an ambush on the cliff above the trail
Synonyms: ambuscade, ambushment
Related Word: lure, snare, trap; blind, cover, hideout, retreat